Computer Programming/Computer Science.

C++:


// My created program, all by myself, copyright Mohammad Nashir

#include <iostream>
using namespace std;

namespace first
{
   int var = 7;
}

int main () {
   cout << first::var << endl;
   cout << "C++ is my favorite and the number 7" << endl;
   cout << "Welcome to my program, hope you learn" << endl;
   return 0;
}